Harness connector for jacquard machines

ABSTRACT

A one-piece harness connector of suitable synthetic material for Jacquard machines which has a loop at one end which can be bent apart; when the loop is closed, the end rests in a support provided on the base of the loop, the support being operative in the longitudinal direction of the harness connector. The present invention is characterized primarily in that the support on the base of the loop comprises a collar-like reinforcement and the end of the loop comprises a conical extension with a longitudinal slotted cutout which is adapted to overlap the reinforcement and to embrace and partially catch behind the shank of the harness connector.

Ullitfid States Patent [191 Rademacher 1 June 5, 1973 [54] HARNESSCONNECTOR FOR JACQUARD MACHINES [73] Assignee: Maschinenfabrik CarlZangs Aktiengesellschaft, Krefeld, Germany [22] Filed: Dec. 16, 1971[21] Appl. No.: 208,585

[56] References Cited UNITED STATES PATENTS 3,055,400 9/1962 Frappe..l39/85 2,840,898 7/1958 Yeo ...24/237 X 3,11 l,734 1l/l963 Pachner...24/237 X FOREIGN PATENTS OR APPLICATIONS Gen'nany ..l39/85 GreatBritain l 39/85 Primary Examiner-James Kee Chi Attorney-Walter Becker[57] ABSTRACT A one-piece harness connector of suitable syntheticmaterial for Jacquard machines which has a loop at one end which can bebent apart; when the loop is closed, the end rests in a support providedon the base of the loop, the support being operative in the longitudinaldirection of the harness connector. The present invention ischaracterized primarily in that the support on the base of the loopcomprises a collar-like reinforcement and the end of the loop comprisesa conical extension with a longitudinal slotted cutout which is adaptedto overlap the reinforcement and to embrace and partially catch behindthe shank of the harness connector.

4 Claims, 10 Drawing Figures Patented June 5, 1973 3,736,962

2 Sheets-Sheet l f 2 Fig.1 Fi .2

INVENTOR.

Patented June 5, 1973 2 Sheets-Sheet 2 INVENTOR. Mr/ fiawrmjw- HARNESSCONNECTOR FOR JACQUARD MACHINES The present invention relates to aharness connector of synthetic material for Jacquard machines, whichharness connector is made of one piece and has a loop on one end thereofwhich may be bent apart for attaching harness ties. Such harnessconnector represents a connecting link between a hook or lifter of aJacquard machine and the harness cords of a loom. When the said loop isclosed, said one end rests in a support provided on the base of the loopand operative in the longitudinal direction of the harness connector.

Synthetic harness connectors of the above mentioned type are known, inwhich a thickening of the shaft forms the base of the loop, in which isprovided a cutout for a hammer head shaped loop end. Following insertionof the hammer head shaped loop end, the base of the loop is supposed toform a support, operative in the longitudinal direction of the harnessconnector, for the hammer head end of the harness connector, which isunder the pulling action of the harness cords. These known harnessconnectors have the drawback that they open much too easily duringoperation of the Jacquard machine. This occurs because the harnessconnectors are not always under a uniform pulling action of the harnesscords. Rather during the stopping of the hook or lifter bars on whichthe harness connectors are suspended in their uppermost position andduring the lowering of the bars from this position, the harnessconnectors are briefly partially or entirely released from the pullingaction by the harness cords. Opened harness connectors immediately causefaulty shed formation and thereby flaws in the weaving.

It is an object of the present invention to produce a synthetic harnessconnector of the above mentioned general type, in which the connectionbetween the end of the loop and the base of the loop, after the loop ishooked in, holds together with absolute reliability, whilesimultaneously retaining the advantage of a releasable connection.

It is a further object of the invention to eliminate the disadvantagesof the state of the art.

These and other objects and advantages of the invention will appear moreclearly from the following specification in connection with theaccompanying drawings in which:

FIG. 1 shows a harness connector with an opened loop according to theinvention.

FIG. 2 shows the same harness connector as FIG. 1 but turned by 90 andin closed position.

FIG. 3 is a section taken along the line III III of FIG. 1.

FIG. 4 is a section taken along the line IV IV of FIG. 1.

FIG. 5 is a section taken along the line V V of FIG. 2.

FIG-6 illustrates a different embodiment of the harness connectoraccording to the invention with an opened loop.

FIG. 7 shows the same harness connector as FIG. 6 but turned relativethereto by 90 and in a closed position.

FIG. 8 is a section taken along the line VIII VIII of FIG. 6.

FIG. 9 is a section taken along the line IX IX of FIG. 6.

FIG. 10 is a section taken along the line X X of FIG. 7.

Starting with a known synthetic harness connector, which consists of onepiece and has a loop on one end thereof which may be bent apart forsuspending harness cords therein and in which said one end, when theloop is closed, rests in a support provided on the base of the loop andeffective in the longitudinal direction of the harness connector, thepresent invention is characterized primarily in that the support on thebase of the loop comprises a collar-like reinforcement while the end ofthe coop comprises a conical shoulder or extension with a longitudinallyextending slot which overlaps the reinforcement and embraces andpartially catches behind the shank of the harness connector.

According to one practical embodiment of the harness connector accordingto the invention, the collarlike reinforcement, on that side of the baseof the loop which faces towards the shoulder, may have a recess forreceiving the shank of the end of the loop. In addition thereto, a webmay be provided above the collarlike reinforcement on that side of thebase of the loop which faces away from the shoulder, which web lies inthe slot of the conical shoulder on the end of the loop when said loopis closed.

In a preferred embodiment of the invention, the recess is arrangedopposite the web and embraces the shank of the loop, so that the latteris doubly secured against unintentionally springing open.

According to a further refinement of the invention, the harnessconnector is formed in such a way that, when the end of the loop is openand relaxed, it rests in a plane of the shank of the harness connectorwhich is parallel to the longitudinal axis of the shank.

The harness connector formed according to the invention has theadvantage of an absolutely reliable snap connection between the end ofthe loop and the shank of the harness connector, while simultaneouslyretaining the advantage of a releasable connection.

Referring now to the drawings in detail, the harness connector 1 shownin FIGS. 1-5 comprises a one piece formed part of a suitable syntheticmaterial. The upper end of the harness connector is provided with an eye2 for suspending therein a lifter or hook (not shown) of a Jacquardmachine. The lower end of a shank 3 has a collar-like reinforcement 4,which serves as a support or counter bearing for a conical extension 5located at the end of a loop 8 formed of arms 6, 7. On one side, theconical extension 5 is provided with a slotted cutout 9, which isadapted to embrace and partially to catch behind the shank 3. A recess10 (FIG. 3) is provided in the reinforcement 4 for the arm 7 of the loop8. Above the reinforcement 41 a web 1 1 extends along one side, whichweb will be located in the slot 12 of the extension 5 when the loop 8 isclosed.

In the harness connector la shown in FIGS. 6l0, the recess 10a providedin the reinforcement 4a is arranged opposite the web Ila and is groovedso as to be able to catch behind the shank 7a of the loop 8a.

As will be seen from the above, the harness connector according to theinvention has the advantage of an absolutely reliable snap connectionbetween loop end and the shank of the harness connector while at thesame time the advantage of a disengageable connection is retained.

It is, of course, to be understood that the present invention is by nomeans limited to the specific showing polypropylene.

What I claim is:

l. A one-piece synthetic material harness connector for Jacquardmachines, which comprises: a shank, a loop for suspending harness cordstherein which loop is integral with and arranged at one end of saidshank and has a first arm and a second arm, said first arm having oneend connected to said shank and having its other end connected to saidsecond arm, said second arm selectively being tiltable toward and awayfrom said first arm, supporting means arranged at the juncture betweensaid loop and said shank and including a collar-shaped reinforcement onsaid shank, and conical extension means arranged at the free end of saidsecond arm and having means forming a cutout arranged in said loopslotted in the longitudinal direction of said second arm, said cutoutdefining conical extension being adapted in response to being tiltedtoward and onto said collar-shaped reinforcement to embrace andpartially engage matingly from behind the said reinforcement overlappedas projecting from the cutout ar ranged thereabove and a portion of saidshank and thereby to be held thereon without releasing therefrom evenduring stopping of 'Jacquard machine operation when tension force ofharness cords is relieved.

2. A harness connector according to claim 1, in which said collar-shapedreinforcement has that side thereof which faces toward said extensionmeans provided with a recess.

3. A harness connector according to claim 1, in which that side of saidcollar-shaped reinforcement which faces away from said conical extensionmeans is provided with web means.

4. A harness connector according to claim 2, in which said reinforcementis provided with web means located opposite said recess, said recessbeing adapted to engage said first arm of said loop below and frombehind said extension means.

1. A one-piece synthetic material harness connector for Jacquardmachines, which comprises: a shank, a loop for suspending harness cordstherein which loop is integral with and arranged at one end of saidshank and has a first arm and a second arm, said first arm having oneend connected to said shank and having its other end connected to saidsecond arm, said second arm selectively being tiltable toward and awayfrom said first arm, supporting means arranged at the juncture betweensaid loop and said shank and including a collar-shaped reinforcement onsaid shank, and conical extension means arranged at the free end of saidsecond arm and having means forming a cutout arranged in said loopslotted in the longitudinal direction of said second arm, said cutoutdefining conical extension being adapted in response to being tiltedtoward and onto said collar-shaped reinforcement to embrace andpartially engage matingly from behind the said reinforcement overlappedas projecting from the cutout arranged thereabove and a portion of saidshank and thereby to be held thereon without releasing therefrom evenduring stopping of Jacquard machine operation when tension force ofharness cords is relieved.
 2. A harness connector according to claim 1,in which said collar-shaped reinforcement has that side thereof whichfaces toward said extension means provided with a recess.
 3. A harnessconnector according to claim 1, in which that side of said collar-shapedreinforcement which faces away from said conical extension means isprovided with web means.
 4. A harness connector according to claim 2, inwhich said reinforcement is provided with web means located oppositesaid recess, said recess being adapted to engage said first arm of saidloop below and from behind said extension means.